Translation 沉 in the Chinese-English Collins dictionary

沉 , chén

I
动

1 (向下落) sink (sank, sunk pt, pp )
船沉到了海底。 The ship sank to the bottom of the sea.

2 (指情绪) become grave (became, become pt, pp )
遇到不如意的事 , 她马上就会沉下脸来。 She pulls a long face as soon as anything happens to displease her.

II
形

1 (指程度深) deep
昨晚我睡得很沉。 Last night I slept very deeply.

2 (重) heavy

3 (不舒服) heavy
我两条腿发沉。 My legs feel heavy.

沉沉 , chénchén
形

1 (重) heavy

2 (程度深) deep
孩子们沉沉地睡了。 Children sleep deeply.

沉甸甸 , chéndiāndiān
形

1 (重) heavy

2 (喻) worried
任务还没完成 , 我心里沉甸甸的。 The job is not finished, and that worries me.

沉浮 , chénfú

I
动 drift

II
名 vicissitude

沉积 , chénjī
动 silt up

沉寂 , chénjì
形

1 (十分寂静) quiet

2  (没有消息)
他沉寂了很久后，突然给我们来了一封信。  There was no news from him for ages, and then suddenly he sent us a letter.
那位小说家已沉寂了多年。  We’ve heard nothing from the novelist for years.

沉浸 , chénjìn
动 immerse

沉静 , chénjìng
形

1 (肃静) quiet

2 (指性格) placid

沉沦 , chénlún
动 sink into (sank, sunk pt, pp )

沉闷 , chénmèn
形

1 [天气、气氛] depressing

2 [心情] depressed
最近我心情很沉闷。 I’ve been feeling really depressed lately.

3 (指性格) introverted

沉湎 , chénmiăn
动 indulge in

沉没 , chénmò
动 sink (sank, sunk pt, pp )

沉默 , chénmò

I
形 taciturn

II
动 be silent

沉溺 , chénnì
动 indulge in

沉睡 , chénshuì
动 be fast asleep

沉思 , chénsī
  动 ponder
他为此事沉思了很久。  He pondered this matter for a long time.
他陷入了沉思。  He was lost in thought.

沉痛 , chéntòng
形

1 [心情] grieving

2 [教训] bitter

沉稳 , chénwĕn
形

1 (稳重) steady

2 (安稳) peaceful
他一向睡得沉稳。 He always sleeps peacefully.

沉重 , chénzhòng
形 heavy

沉着 , chénzhuó
形 calm
他处理问题沉着冷静。 He deals with problems calmly and soberly.

沉醉 , chénzuì
动 be intoxicated
他沉醉在成功的喜悦中。 He was intoxicated with success.

低沉 , dīchén
形

1 (声音) deep
他声音低沉。 He’s got a deep voice.

2 (天空) overcast
低沉的夜空 an overcast night

3 (心情) 他情绪低沉。 He’s feeling a bit low.

浮沉 , fúchén
  动 drift
与世浮沉  swim with the tide
商海浮沉  the ups and downs of business

昏沉 , hūnchén
形

1 (暗淡) murky

2 (昏乱) muddled

破釜沉舟 , pò fŭ chén zhōu burn one’s bridges